Mark Carwardine / Mauritius kestrel (Falco punctatus) threatened / endangered species, once the rarest bird in the world, Mauritian Wildlife Foundation breeding centre, Mauritius, Indian Ocean, captive

Mark Carwardine / Mauritius kestrel (Falco punctatus) threatened / endangered species, once the rarest bird in the world, Mauritian Wildlife Foundation breeding centre, Mauritius, Indian Ocean, captive

Julian Hume / Illustration of Mare aux Songes, 4,000 years ago. All of the animals in this image, apart from the Echo Parakeet (Psittacula echo), Pink pigeon (Nesoenas mayeri) Mauritius kestrel (Falco punctatus) an...

Brent Stephenson / Mauritius Kestrel (Falco punctatus) perched in a tree within the Black River Gorges National Park, Mauritius.

Brent Stephenson / Mauritius kestrel (Falco punctatus) perched in a tree within the Black River Gorges National Park, Mauritius.

Mark Carwardine / Mauritius kestrel (Falco punctatus) perched in cage, threatened / endangered species, once the rarest bird in the world, Mauritian Wildlife Foundation breeding centre, Mauritius, Indian Ocean, captiv...

Mark Carwardine / Mauritius kestrel (Falco punctatus) in cage, threatened / endangered species, once the rarest bird in the world, Mauritian Wildlife Foundation breeding centre, Mauritius, Indian Ocean, captive

Mark Carwardine / Mauritius kestrel (Falco punctatus) threatened / endangered species, once the rarest bird in the world, Mauritian Wildlife Foundation breeding centre, Mauritius, Indian Ocean, captive

Nick Garbutt / Mauritius kestrels juveniles on garden fence {Falco punctatus} Moka Mountains, Mauritius

Nick Garbutt / Mauritius kestrel hovering {Falco punctatus} Mauritius

Colin Seddon / Mauritius kestrel {Falco punctatus} captive Dorset, England

Nick Garbutt / Mauritius kestrel chicks, two-week-old {Falco punctatus} Mauritius